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Journal articles on the topic 'Jet engine'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Chen, Ruiyang. "Advanced development and future of jet engines." Theoretical and Natural Science 12, no. 1 (2023): 162–66. http://dx.doi.org/10.54254/2753-8818/12/20230457.

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An aerodynamic reaction engine, a jet engine, is an internal combustion engine that produces thrust through jet thrust. A jet engine is an important power unit used in aviation and spaceflight, which generates thrust by pushing air in reverse. In recent decades, various developments and improvements have significantly enhanced the efficiency and performance of jet engines. These engines are divided into turbojets, turbojets, turboprops, turboshafts, and ramjets. This article will begin with an introduction to the different types of jet engines and then detail the design, benefits, and issues o

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Liu, Hangyu. "Current Status of Jet Engines and Their future." Highlights in Science, Engineering and Technology 43 (April 14, 2023): 280–86. http://dx.doi.org/10.54097/hset.v43i.7430.

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Jet engines have important application value and status in the aerospace field, which directly affects the development of aircraft and spacecraft. This year, jet engines have gradually become the focus and hotspot of scholars at home and abroad. Through the method of literature comparison and analysis, this paper focuses on analysing two common jet engines, namely turbofan engine and pulse jet engine, and makes a detailed analysis and comparison of their working principles and applications; for the future development of parts, three-dimensional (3D) printing technology as an example, the use o

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Langston, Lee S. "For Jet Engine Wing Mounting." Mechanical Engineering 140, no. 09 (2018): S52—S53. http://dx.doi.org/10.1115/1.2018-sep4.

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The mounting of a jet engine under the wing of an airliner can be a daunting task for turbofan engineers. Thrust forces generated by gas path momentum flow changes in a jet engine are transmitted by pressure (and friction) forces on stators and struts attached to the engine case. Case engine mounts then transmit the thrust forces (as high as 100,000 pounds thrust on the largest engines) to the wing pylons to pull the plane forward. The mounts must also support the engine weight (as high as 20,000 pounds) and carry nacelle flight loads. Engine bypass ratios are increasing (12:1 on the new geare

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Saitoh, K., A. Fushimi, S. Matsuyama, et al. "Elemental analysis of aircraft engine smoke number filter samples with micro-PIXE." Journal of Physics: Conference Series 2326, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1742-6596/2326/1/012002.

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Abstract To extract information on elemental components and PM characteristics from smoke number (SN) filter paper, we were performed elemental analysis by micro-PIXE. As a result of elemental analysis of the SN filter, information on the elemental composition of jet engine exhaust PM was obtained. Regarding the SN filter, jet engine exhaust PM have been collected for each difference in engine thrust of various aircraft engines at aircraft turbine engines test cells around the world. By periodically analyzing the elemental composition of such the SN filter, it is possible to grasp the characte

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Hu, Lichen, Feiyu Long, Borui Xie, and Xuanzhou Zhuang. "Four variants of turbofan, turbojet, turboprop and ramjet engines and their future prospects." Applied and Computational Engineering 11, no. 1 (2023): 137–42. http://dx.doi.org/10.54254/2755-2721/11/20230222.

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A jet engine is a sophisticated machine that has revolutionized the aviation industry. It is a type of internal combustion engine that uses air as its oxidizer and fuel to produce thrust. The third law of motion, which states that there is an equivalent and opposite response to every action, governs how the engine functions. Compressed air is combined with fuel, ignited in the combustion chamber, and then expelled out of the jet engine at a high rate of speed to create propulsion. The development of jet engines has been a long and arduous process, with many different designs and configurations

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Gusev, Evgeniy V., Vladimir A. Zagovorchev, Vladimir V. Rodchenko, Elnara R. Sadretdinova, and Elizaveta A. Shipnevskaya. "Calculation of the parameters and characteristics of a rotating lunar jet penetrator." Siberian Aerospace Journal 24, no. 4 (2023): 706–16. http://dx.doi.org/10.31772/2712-8970-2023-24-4-706-716.

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The purpose of the work is to determine the parameters of the internal ballistics of a solid fuel jet engine mounted on a jet penetrator entering the ground at a high rotation speed around its own axis. Research methods: to determine the pressure in the chamber of a rotating engine, the known equations for the balance of gas inflow and consumption are usually used, as in the case of a non-rotating solid fuel jet engine. The difference between the internal ballistics of a rotating solid fuel jet engine is that the effect of rotation on the operating process is taken into account by the coeffici

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Pismennyi, V. L. "Hyper Afterburner Jet Engines." Proceedings of Higher Educational Institutions. Маchine Building, no. 01 (718) (January 2020): 51–62. http://dx.doi.org/10.18698/0536-1044-2020-1-51-62.

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This paper introduces a thrust augmentation method for super- and hypersonic jet engines by means of applying water at the engine intake. This method expands the use of jet engines with subsonic combustion, allowing velocities up to Mach 8 and altitude up to 45 km. At velocities higher than 3–4 Mach, stagnation temperature of the air is getting higher than the critical temperature of water, which makes the existence of water at the gas turbine engine intake impossible. Water vapour as a working medium of a jet engine creates the so-called inner thermodynamic circle. This phenomenon defines the

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Chachurski, Ryszard, Łukasz Omen, Andrzej J. Panas, and Piotr Zalewski. "Mobile engine test station for preparation and operation of miniature turbine jet engines for flying aerial targets." Bulletin of the Military University of Technology 69, no. 4 (2020): 57–72. http://dx.doi.org/10.5604/01.3001.0015.3819.

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The work presents description and operation of the mobile engine test station, designed for the miniature turbine jet engines with a maximum trust below 200 N. The engine test bed allows us to monitor the condition of the engine used to drive remotely controlled flying aerial targets or military unmanned aircraft. According to military (Department of Defence) requirements, the designed engine test station is mobile, it can be used in military battlefield conditions and it meets safety precautions and military transport requirements. The reason of the engine investigations was the shortage and

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9

Garwol, Arkadiusz. "Jet engine - construction and modern development examples." Technologia i Automatyzacja Montażu 125, no. 3 (2024): 38–43. http://dx.doi.org/10.7862/tiam.2024.3.5.

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The article presents the construction and operating principle of a turbine jet engine. The basic types of engines of this type are presented, such as single-rotor single-flow jet engines, single-flow dual-rotor engines (which are another development version of single-rotor engines, as well as dual-flow engines which are currently most commonly used in passenger aviation, and contra-rotating propeller engines and turbine propeller engines. Also presented their applications, such as propulsion of various types of. In the further part of this paper, the development trends of turbine jet engines a

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10

Fan, Chengye, Ruoshui Jiang, and Songzhi Zhang. "Current Status and Future Prospects of Jet Engines." Highlights in Science, Engineering and Technology 29 (January 31, 2023): 240–46. http://dx.doi.org/10.54097/hset.v29i.4836.

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Current status and future prospects of Jet engine are described in this paper. Specifically, this paper contains three aspects: the current application of jet engines, the advantages and disadvantages of four major types of jet engines, and its future development trends. The method of the paper is analyze main four types of Jet Engines principle separately, and makes comparisons. Specifically, those four main types of Jet Engines are turbojet, turbofans, turboprops and ramjets. Moreover, if people want to understand Jet Engines, understand how Brayton cycle run is necessary. Brayton cycle is t

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GAWRON, Bartosz, and Tomasz BIAŁECKI. "Measurement of exhaust gas emissions from miniature turbojet engine." Combustion Engines 167, no. 4 (2016): 58–63. http://dx.doi.org/10.19206/ce-2016-406.

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This paper presents a methodology developed to measure exhaust gas emissions during operation of a miniature turbojet engine, using a laboratory test rig. The rig has been built for research and development works aimed at modelling and investigating processes and phenomena occurring in jet engines. The miniature jet engines, similarly to full–scale ones used commonly in air transport, are characterized by variable exhaust gas emissions, depending on engine operating parameters. For this reason, an attempt has been made to determine the characteristic features of miniature engine operation mode

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Retnowati, Nurcahyani Dewi, Sri Mulyani, and Frencha Talantha. "Three Dimensional Simulation of Changes in Air Flow on a Jet Engine Desktop Based." Compiler 8, no. 1 (2019): 45. http://dx.doi.org/10.28989/compiler.v8i1.431.

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Learning about changes in air flow on jet engines requires a clear understanding because there are parts of the jet engine that work according to their functions and are interconnected. People often have difficulty understanding learning about changes in air flow in the jet engine and also about the brayton cycle. This study aims to make a simulation that explains the changes in air flow in a jet engine with a three-dimensional animated form in order to improve understanding of learning about it. The process of making three-dimensional simulations uses animation modeling techniques, texturing,

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13

Sugiyama, N. "System Identification of Jet Engines." Journal of Engineering for Gas Turbines and Power 122, no. 1 (1999): 19–26. http://dx.doi.org/10.1115/1.483172.

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System identification plays an important role in advanced control systems for jet engines, in which controls are performed adaptively using data from the actual engine and the identified engine. An identification technique for jet engine using the Constant Gain Extended Kalman Filter (CGEKF) is described. The filter is constructed for a two-spool turbofan engine. The CGEKF filter developed here can recognize parameter change in engine components and estimate unmeasurable variables over whole flight conditions. These capabilities are useful for an advanced Full Authority Digital Electric Contro

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LEE, Young-Jun. "Micrometeorology and the Jet Engine." Korean Jornal of History of Science 41, no. 2 (2019): 215–34. http://dx.doi.org/10.36092/kjhs.2019.41.2.215.

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Ji, Runmin, Xianghua Huang, and Xiaochun Zhao. "Active Jet Noise Control of Turbofan Engine Based on Explicit Model Predictive Control." Applied Sciences 12, no. 10 (2022): 4874. http://dx.doi.org/10.3390/app12104874.

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The active jet noise control received significant attention due to the little influence it has on the engine performance. The active jet noise control is a multivariable problem because it needs to achieve the simultaneous closed-loop control of jet noise and engine performance. Model predictive control (MPC) has great application potentials in the field of multivariable control of aero-engines, but the real-time performance of MPC is intractable. This paper proposed an active jet noise controller of a turbofan engine, based on explicit model predictive control (EMPC). An integrated model of t

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KOTLARZ, Wojciech, Leszek PIASECZNY, Andrzej RYPULAK, and Ryszard ZADRĄG. "Tests of exhaust gas toxicity of jet turbine engine for take off and landing phases of flight." Combustion Engines 127, no. 4 (2006): 61–73. http://dx.doi.org/10.19206/ce-117340.

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Submitted paper describes proposal of research tests of toxic compounds emission of jet turbine engines. Scientific work includes researches of toxic compounds in exhaust gas for different spectrum of load of SO-3 engines (TS-11 jet trainer aircraft engine). All practical activities were done at the airfield for star t procedures, pre-flight engine tests, taxi phase, take-offs and landings.

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Shuaibu Alani Balogun, Ihwan Ghazali, Abdullahi Tanko Mohammed, Dhany Hermansyah, Ayu Amanah, and Mega Tri Kurnia. "Renewable Aviation Fuel: Review of Bio-jet Fuel for Aviation Industry." Engineering Science Letter 1, no. 01 (2022): 7–11. http://dx.doi.org/10.56741/esl.v1i01.59.

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The search for environmentally sound, socially responsible, and economically viable renewable fuel generation methods is a major global concern. A type of aviation fuel called jet fuel or often spelled avtur is intended for use in aeroplanes with turbine (gas) engines. Jet fuel appears colourless. The fuels Jet A and Jet A-1 are the most frequently used ones in commercial aviation sector. Other than Jet B, which is utilised for its enhanced cold-weather operation, there are no other jet fuels that are frequently used in gas-turbine-engine in the aviation industry. Renewable aviation fuel or kn

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Hocko, Marián, Samer Al-Rabeei, and Martina Koščáková. "Effects of FAME Biofuel and Jet A-1 Aviation Kerosene Blends on the Operating Characteristics of Aircraft Jet Engines." Applied Sciences 13, no. 2 (2023): 971. http://dx.doi.org/10.3390/app13020971.

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The article investigates the possibilities for the miscibility and practical use of different concentrations of biofuel rapeseed fatty acid methyl ester (FAME) with aviation kerosene Jet A-1 (or aviation kerosene PL-7 used in the Air Force of the Slovak Republic) in aircraft jet engines. The main objective of this research was the experimental verification of the technical possibilities of reliable operation of the experimental engine SJE-20 in a special laboratory of small jet engines using different concentrations of the mixture of aviation kerosene Jet A-1 and biofuel FAME and their influen

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Rabeta, Bismil, Mohammad A.F Ulhaq, Aswan Tajuddin, and Agus Sugiharto. "Simulasi Graphical User Interface Analisis Termodinamika Mesin Turboprop Menggunakan Perangkat Lunak Matlab R2020a." Jurnal Teknologi Kedirgantaraan 6, no. 2 (2021): 31–50. http://dx.doi.org/10.35894/jtk.v6i2.44.

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A turboprop engine is a hybrid engine that delivers thrust or jet thrust and also drives the propeller. This is basically similar to a turbojet except the turbine works through the main shaft which is connected to the reduction gear to rotate the propeller in front of the engine. This research was conducted to determine the development of engine performance in thermodynamic analysis so as to know the value of each parameter on a engine that has been developing for 20 to 50 years with different engine manufacturing. So that in this study a comparison of the thermodynamic analysis of the TPE-331

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Sneha, Rachel Francis, and J. S. Mija. "Design of Fault Tolerant Control Laws for Jet Engines." Applied Mechanics and Materials 367 (August 2013): 96–100. http://dx.doi.org/10.4028/www.scientific.net/amm.367.96.

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Full Authority Digital Electronic Control (FADEC) system is common in all modern jet engines. In jet engine, the simplest control system is to produce desired engine thrust by changing the fuel flow. Since in flight engine thrust measurement is practically not possible, engine low pressure shaft rotational speed (N1/NL), engine pressure ratio (EPR), or exhaust jet temperature (EJT) has been effectively used as an indicator of the engine thrust. In this paper, the model used is twin spool turbofan engine. If any fault occurs in N1 sensor, the entire engine operation will be affected. Since ther

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Kumar K P, Prajith, and Aravind Vaidyanathan. "Medium independent jet (MI-Jet) engine." Propulsion and Power Research 9, no. 3 (2020): 240–54. http://dx.doi.org/10.1016/j.jppr.2020.08.002.

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22

Żokowski, Mariusz, Paweł Majewski, and Jarosław Spychała. "Detection Damage in Bearing System of Jet Engine Using the Vibroacoustic Method." Acta Mechanica et Automatica 11, no. 3 (2017): 237–42. http://dx.doi.org/10.1515/ama-2017-0037.

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Abstract The article discusses typical, operational systems for monitoring vibrations of jet engines, which constitute the propulsion of combat aircraft of the Armed Forces of the Republic of Poland. After that, the paper presents the stage of installing vibration measuring sensors in the direct area of one of the jet engine bearings, which is a support system for its rotor. The article discusses results of carried out analyses of data gathered during tests of the engine in the conditions a jet engine test bed. Results of detecting damages to the bear-ing, using sensors built in the direct are

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23

He, Sibo, Yimeng Li, Zidong Pu, and Wenbo Rao. "Aerodynamic Calculation and Computer Numerical Simulation Methods Applied in Jet Engine Research." Highlights in Science, Engineering and Technology 62 (July 27, 2023): 217–27. http://dx.doi.org/10.54097/hset.v62i.10446.

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The development status of aero-engines is a sign of a country's technological development level and comprehensive national strength. Jet engines undergone a rapid development since being invented and are widely applied in both commercial and military aircraft nowadays. The objective of jet engines is to provide thrust for aircraft and maintain high performance in different flight segments. Engine design choice must be compromised to balance different selection criteria. This article reviews the development history of jet engines and reviews the development paths of jet engines in various techn

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Čerňan, Jozef, Karol Semrád, Katarína Draganová, and Miroslava Cúttová. "Fatigue stress analysis of the DV-2 engine turbine disk." Aircraft Engineering and Aerospace Technology 91, no. 4 (2019): 708–16. http://dx.doi.org/10.1108/aeat-03-2018-0096.

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Purpose The purpose of this study is to improve life prediction of certain components. Fatigue of the high-stressed structural elements is an essential parameter that affects the lifetime of such components. In particular, aviation engines are devices whose failure due to fatigue failure of one of the important components can lead to fatal consequences. Design/methodology/approach In this study, two analyses in the turbine disk of the jet engine during the simulated operating load were performed: The first one was the analysis of the heat-induced stresses using the finite element method. The g

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Min, Sun-Ki. "Study of Engine Oil Jet System Effect on Engine Friction." Journal of the Korea Academia-Industrial cooperation Society 17, no. 6 (2016): 687–92. http://dx.doi.org/10.5762/kais.2016.17.6.687.

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Xu, Zipeng. "Jet Engine Technology: Improving Efficiency and Performance through Advanced Design and Cooling Systems." Highlights in Science, Engineering and Technology 119 (December 11, 2024): 815–22. https://doi.org/10.54097/2f26xg24.

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The aviation industry is facing increasing pressure to improve jet engine efficiency while reducing environmental impacts, driven by the need for sustainable development and reduced carbon emissions. Jet engines, central to modern aviation, are evolving through innovative designs and advanced cooling systems. This paper provides an overview of the latest research aimed at improving jet engine efficiency, with a focus on the design and development of advanced turbine blade cooling systems, fan designs, materials, and the utilization of computational tools and techniques. The goal is to promote

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Zhang, Junwei. "Resolving puzzles in jet engines from history and future." Theoretical and Natural Science 9, no. 1 (2023): 81–85. http://dx.doi.org/10.54254/2753-8818/9/20240721.

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In the past decades, taking an airplane has become one of the fastest travel methods, including transportation between two cities far away from each other or between two different countries across the earth. Jet engines take over most of the engine market on airplanes; while having over 20% of the cost to build a plane, economic efficiency is the first thing to consider. After that, due to the pollution of its fuel-burning process, environmentally friendly became another thing that needs to be valued. In this paper, the history and the basic principle of the jet engine will be demonstrated. So

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Li, Shengyuan. "Development trends and future expectations of jet engine." Applied and Computational Engineering 11, no. 1 (2023): 129–36. http://dx.doi.org/10.54254/2755-2721/11/20230221.

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Nowadays, nearly all large commercial aircraft are powered by gas turbine engines. Having been developed for about 80 years of engines applied on commercial aircraft, from low bypass ratio turbojet engines to high bypass ratio turbofan engines since the first turbojet engine was patented in 1930 by Frank Whittle, gas turbine engines still have a high potential to improve the performance. Currently, motor thermodynamic efficiency can still rise in the following decades; composite materials, for instance, gamma titanium aluminum and polymer matrix composites, are becoming widely used in airliner

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Langston, Lee S. "Not So Simple Machines." Mechanical Engineering 135, no. 01 (2013): 30–35. http://dx.doi.org/10.1115/1.2013-jan-3.

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This article talks about evolving technologies in making efficient gears for different auto engines. Gears are integral to a new engine that has the potential to change commercial aviation. Pratt & Whitney’s geared turbofan (GTF) jet engine will have significantly better fuel economy and much quieter operation. The P&W GTF combines existing jet engine technology with the well-established mechanical engineering technology of gears. Due to its high bypass ratio, the geared turbofan engine is 16% more efficient than standard jet engines. A key facility for developing the GTF gearbox has b

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Jiang, Bingkun, and Liangfa Xu. "Research on RCS Calculation for the Jet System of the Engine." Journal of Physics: Conference Series 2179, no. 1 (2022): 012031. http://dx.doi.org/10.1088/1742-6596/2179/1/012031.

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Abstract In order to improve the stealth ability of the jet system of the engine, RCS calculation had been achieved through three steps, which were preprocess, core calculation and reprocessing. Some engine set as reference, the RCS of tail jet pipes with difference shapes had been calculated. The results show that the plug type tail pipe can advance stealth capability of the jet system. The numerical examples indicated the RCS calculation could play notable function in stealth design and promotion of engines.

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ANDREI, Irina-Carmen, Mihai Victor PRICOP, Mihai Leonida NICULESCU, et al. "COMPARATIVE ANALYSIS FOR PERFORMANCE PREDICTION IN CASE OF IAR 99 AIRCRAFT PROPULSION SYSTEMS." SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE 25 (July 31, 2024): 152–67. http://dx.doi.org/10.19062/2247-3173.2024.25.18.

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This paper presents a comparative analysis regarding Performance Prediction at Design and Off-Design Regimes, applied for two distinct constructions of Jet Engines as Propulsion Systems solutions for the IAR 99 Aircraft. Case Study #1 is represented by Turbojet Engine Rolls Royce VIPER MK 632-41 and Case Study #2 is represented by a Mixed Flows Turbofan Engine. The thorough study is based on appropriate Applicable Theory, which is detailed in the bibliographic references and can be accessed. Applicable Theory includes a part dedicated to Engine Parameter Identification, which is necessary to c

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Cican, Grigore, and Radu Mirea. "An Experimental Insight into the Use of N-Butanol as a Sustainable Aviation Fuel." Fire 7, no. 9 (2024): 313. http://dx.doi.org/10.3390/fire7090313.

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This study investigates the performance and environmental impact of n-butanol blended with Jet-A fuel in turbo engines, aiming to assess its viability as a sustainable aviation fuel (SAF). The research involves the experimental testing of various blends, ranging from low to high concentrations of n-butanol, to determine their effects on engine performance and emissions. The experimental setup includes comprehensive measurements of engine parameters such as thrust, fuel consumption rates, and exhaust gas temperatures. Emissions of sulfur dioxide (SO2), and carbon monoxide (CO) are also analyzed

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Pravesh, Jain, and Patil Rupali. "Design and Manufacturing of Turbofan/Turbojet Engine- A Review." Journal of Fluid Mechanics and Mechanical Design 1, no. 1 (2019): 1–5. https://doi.org/10.5281/zenodo.3233288.

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This paper presents the study of researching, designing and building of jet-engines. A simplified way is chosen to compact the design and construction of jet engine which includes Additive design and additive manufacturing is the method which will sharpen the aerospace industry due to its unique characteristics like gradient materials and microstructure.

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Cican, Grigore, Marius Deaconu, Radu Mirea, and Andrei Tiberiu Cucuruz. "Influence of Bioethanol Blends on Performances of a Micro Turbojet Engine." Revista de Chimie 71, no. 5 (2020): 229–38. http://dx.doi.org/10.37358/rc.20.5.8131.

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This paper proposes a study regarding the use of bioethanol as fuel for turbine engines used in aviation. For this purpose, three blends of 5, 10, and 15% concentrations of bioethanol mixed with Jet A fuel were tested on JET CAT P80 microturbo engine. During the engine testing, the following parameters were monitored: engine speed, generated force, temperature in front of the turbine, fuel volumetric flow rate, and vibration levels measured both on axial and radial direction. The tests were performed by maintaining the microturbo engine for about 1 min at three operating regimes: idle, cruise,

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Cican, Grigore, Marius Deaconu, Radu Mirea, Laurentiu Ceatra, Mihaiella Cretu, and Tănase Dobre. "Investigating the Use of Recycled Pork Fat-Based Biodiesel in Aviation Turbo Engines." Processes 8, no. 9 (2020): 1196. http://dx.doi.org/10.3390/pr8091196.

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This paper presents an analysis of the possibility of using recycled pork fat-based biodiesel as fuel for aviation turbo-engines. The analysis consists of the assessment of four blends of Jet A kerosene with 10%, 30%, 50%, and 100% biodiesel and pure Jet A that was used as reference in the study. The first part of the paper presents the physical-chemical properties of the blends: density, viscosity, flash point, freezing point, and calorific power. Through Fourier transform infrared spectroscopy (FTIR) analysis, a benchmark was performed on the mixtures of Jet A with 10%, 20%, 30%, 50%, and 10

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SKRZEK, Tomasz. "Duel fuel compression ignition engine fuelled with homogeneous mixtures of propane and kerosene-based fuel." Combustion Engines 178, no. 3 (2019): 191–97. http://dx.doi.org/10.19206/ce-2019-333.

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The paper presents some results of examination of DF CI engine fuelled with kerosene-based fuel (Jet A-1) and propane. The aim was to obtain the maximum engine thermal and overall efficiency and checking the engine emissions for the application of significant share of propane as a main source of energy. The fuel which initiates the ignition was Jet A-1 provided by common rail system during the beginning of compression stroke. Propane was provided to inlet manifold in a gas phase. The method of providing of both fuels to the engine cylinder allowed to create nearly homogeneous mixture and reali

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Keval, Babu. "Use of Ceramic Matrix Composites (CMCs) in High-Pressure Turbine of the Jet Engine." International Journal of Innovative Research in Engineering & Multidisciplinary Physical Sciences 7, no. 6 (2019): 1–9. https://doi.org/10.5281/zenodo.14900629.

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The jet engine has been pivotal in both war and peace, propelling humanity to new heights and broadening our horizons. However, the environmental impact of fuel combustion in predominant transportation modes, like air travel, has become a growing concern due to climate change. This paper investigates how the integration of Ceramic Matrix Composites (CMCs) into the high-pressure turbine of jet engines can significantly enhance engine efficiency, reduce emissions, and lower fuel costs. It begins by outlining the fundamental principles and performance requirements of jet engines, followed by an e

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Tolou, Sedigheh, and Harold Schock. "Experiments and modeling of a dual-mode, turbulent jet ignition engine." International Journal of Engine Research 21, no. 6 (2019): 966–86. http://dx.doi.org/10.1177/1468087419875880.

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The dual-mode, turbulent jet ignition system is a promising combustion technology to achieve high diesel-like thermal efficiency at medium to high loads and potentially exceed diesel efficiency at low-load operating conditions. The dual-mode, turbulent jet ignition systems to date proved a high level of improvement in thermal efficiency compared to conventional internal combustion engines. However, some questions were still unanswered. The most frequent question regarded power requirements for delivering air to the pre-chamber of a dual-mode, turbulent jet ignition system. In addition, there w

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Montazeri-Gh, Morteza, and Seyed Alireza Miran Fashandi. "Bond graph modeling of a jet engine with electric starter." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 9 (2018): 3193–210. http://dx.doi.org/10.1177/0954410018793772.

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Following the technological advances in recent decades, advanced electronic systems linked to the gas turbine industry are increasingly considered by the designers of this field. For this purpose, new airborne systems in conjunction with jet engines are developed, which are incorporated in many challenging design problems such as control law and configuration design. Thus, a comprehensive modeling structure is needed that can bolster the integrity of the system development such as the bond graph approach, which is known as an efficient method for modeling complicated mechatronic systems. In th

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Ułanowicz, Leszek, Paweł Szczepaniak, and Grzegorz Jastrzębski. "Reverse engineering modeling of jet turbine engine blade ring palisade geometry." Journal of Konbin 54, no. 4 (2024): 135–58. https://doi.org/10.5604/01.3001.0054.9319.

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When designing small turbine jet engines for UAVs, the theory of geometric similarity of components made at different scales can be used. This allows determining how an engine component designed at a macro scale can be recreated at a micro scale. The idea of the process of modeling the palisade of turbine blade rings of a UAV jet engine together with its rotor and nozzle blades, based on reverse engineering, is presented. The methodology for reproducing the geometry of turbine blade rings together with their rotor and nozzle blades of a turbine jet engine is presented. The tools for removing t

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Huang, Kai Wai. "Analysis of the Principle of Jet Engine and State-of-art Application." Applied and Computational Engineering 98, no. 1 (2024): 186–94. http://dx.doi.org/10.54254/2755-2721/98/2024fmceau0112.

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Abstract. In 1903, the Wright Brother made the dream of flight come true. Contemporarily, as the development of modern technology, aviation has become a major type of daily transportation. The jet engines are the magic that makes the airplanes soar high in the blue sky. As the jet engine is a major invention in human history that brought humans to the sky, it is meaningful to gig into the principle behind the engines. In this article, the principle of 5 jet engines are explained. There are benefits but also impacts due to the human beings. Environmental problems are caused by the exhausted gas

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Fukuda, Masafumi, Hiroshi Harada, Tadaharu Yokokawa, and Tomonori Kitashima. "Virtual Jet Engine System." Materials Science Forum 638-642 (January 2010): 2239–44. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.2239.

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In 1999, we proposed the concept of a virtual gas turbine system which is a combination of turbine design and material design programs. Using this system, it has become possible to design a gas turbine engine and a combined cycle automatically, by inputting some basic information such as power output, turbine inlet temperature and material specifications. The derived outputs are turbine gas path dimensions, gas and cooling air flow rates, thermal efficiency, CO2 emissions, etc. We use the system to evaluate the potential improvement if a newly developed material is to be used in building the e

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Hirt, William J. "Jet engine noise suppressor." Journal of the Acoustical Society of America 90, no. 4 (1991): 2216–17. http://dx.doi.org/10.1121/1.401618.

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Zhang, Shuo. "Diverse sustainable methods for future jet engine." Applied and Computational Engineering 11, no. 1 (2023): 143–48. http://dx.doi.org/10.54254/2755-2721/11/20230223.

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With global concerns over CO2 emissions and climate change, the aviation industry is investing in renewable fuels and sustainable engines. Bio-Synthetic Paraffinic Kerosene (Bio-SPK) and hydrogen are two significant biofuels that can replace fossil fuels in jet engines. Biofuel is considered a sustainable fuel; it is possible to replace fossil fuel in jet engines. Bio-SPK is an aviation fuel made from plant-derived lipids and processed to have similar properties to traditional jet fuel. It offers significant emissions savings compared to Jet-A1 but is not widely available due to high productio

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Wen, Wei, and Xiaoru Zhang. "Laser Beam Quality of Airy Beam in the Jet Engine Exhaust Induced Turbulence." Atmosphere 14, no. 9 (2023): 1374. http://dx.doi.org/10.3390/atmos14091374.

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Theoretical predictions of laser beam interactions with jet-engine-exhaust-induced turbulence are of importance for optimization of various optical systems, including LIDARs and airborne laser measurement systems. This paper is based on the extended Huygens–Fresnel diffraction integral and the Wigner distribution function, combined with the recently proposed power spectral density function of atmospheric turbulence induced by jet engine exhaust, to derive the formula for the quality factor of a partially coherent Airy beam in turbulent media induced by jet engine exhaust. Numerical calculation

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Lee, Incheol, Yingzhe Zhang, and Dakai Lin. "Empirical estimation of engine-integration noise for high bypass ra-tio turbofan engines." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 2 (2021): 4511–19. http://dx.doi.org/10.3397/in-2021-2723.

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To investigate the impact of installation on jet noise from modern high-bypass-ratio turbofan engines, a model-scale noise experiment with a jet propulsion system and a fuselage model in scale was conducted in the anechoic wind tunnel of ONERA, CEPRA 19. Two area ratios (an area of the secondary nozzle over an area of the primary nozzle), 5 and 7, and various airframe configurations such as wing positions relative to the tip of the engine nacelle and flap angles, were considered. Based on the analysis of experimental data, an empirical model for the prediction of engine installation noise was

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Wei, Wei, Xin Hui, Xin Xue, Qiang An, and Shiyang Yu. "Flame–Flame Interactions and Jet–Jet Interactions in Gas Turbine Swirl Combustors." Energies 18, no. 2 (2025): 390. https://doi.org/10.3390/en18020390.

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Annular combustors are widely used in newly developed aero-engines. Nevertheless, the development of annular combustors requires substantial air supplies and high-power heaters during testing, leading to high experimental costs. To reduce these costs during the design phase, researchers often simplify annular combustors into single-dome configurations using aerodynamic and thermodynamic similarity principles. A fundamental divergence exists between the boundary conditions of annular and simplified single-dome combustors, which is reviewed in this article. It highlights the limitations of singl

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Kowalski, Mirosław, Jarosław Sarnecki, Paweł Stężycki, and Dariusz Ćwik. "Possibilities of Using the Type Bypass Air Bleed in a Single-Flow Jet Engine." Journal of KONBiN 50, no. 4 (2020): 63–71. http://dx.doi.org/10.2478/jok-2020-0074.

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Abstract The paper outlines the analysis dedicated to possibilities of using the type Bypass air bleed in a single-flow jet engine. Attention is focused on development of formulas for key operational parameters of the engine, such as overall work of the thermal cycle, unit thrust and unit consumption of fuel. Simulation and modelling a single-flow jet engine were carried out for the K-15 engine of a Polish make where an air bleeding of that kind is applied. It was confirmed that such engines offer some slight benefits, in particular in terms of cost-efficiency, and such benefits increase in pa

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Tian, Hua, Jingchen Cui, Tianhao Yang, Yao Fu, Jiangping Tian, and Wuqiang Long. "Experimental Research on Controllability and Emissions of Jet-Controlled Compression Ignition Engine." Energies 12, no. 15 (2019): 2936. http://dx.doi.org/10.3390/en12152936.

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Low-temperature combustions (LTCs), such as homogeneous charge compression ignition (HCCI), could achieve high thermal efficiency and low engine emissions by combining the advantages of spark-ignited (SI) engines and compression-ignited (CI) engines. Robust control of the ignition timing, however, still remains a hurdle to practical use. A novel technology of jet-controlled compression ignition (JCCI) was proposed to solve the issue. JCCI combustion phasing was controlled by hot jet formed from pre-chamber spark-ignited combustion. Experiments were done on a modified high-speed marine engine f

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Langston, Lee S. "Gears Galore!" Mechanical Engineering 135, no. 04 (2013): 51–54. http://dx.doi.org/10.1115/1.2013-apr-4.

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This paper presents a review of gas turbines and Honeywell, a company based in Phoenix, history. The article through the review and historical analysis intends to provide perspective on the status of geared fan engines. The addition of a fan to a jet engine, first proposed by Frank Whittle, one of the inventors of the jet engine, increases thrust and reduces fuel consumption. Pratt & Whitney and Rolls Royce were the first to develop a dual spool engine for more efficient operation over a range of flight conditions. Work started on the geared fan TFE731 at the Garrett AiResearch Phoenix Div

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